Wrench



J. LUSSIE'R.

(No Model.)

WRENCH.

Patented Dec. 9,1884.

INVENTQR:

WITNESSES ATTORNEYS.

Warren @rarns Parnwr Urrrcre.

JOSEPH LUSSIER, OF MINNEAPOLIS, MINNESOTA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 308,969, dated December9, 1884:.

7 Application filed February 19, 1894. (N0 model.)

To all whom it may concern.-

Be it known that I, Josnrrr LUssrnR, of Minneapolis, in the county ofHennepin and State of Minnesota, have invented a new and ImprovedWrench, of which the following is a full, clear, and exact description.

The object of my invention is to furnish a wrench that can be uscdincorners and other hardly-accessible places where it is inconvenient orimpossible to use an ordinary wrench.

The improvement relates to the class of wrenches having rocking oradjustable heads; and it consists in certain novel features ofconstruction, as hereinafter described and claimed. 1

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side view of the wrench with a portion of the shankremoved, and Fig. 2 is a face view. Fig. 3 is a section of the head,showing the operating-screw and sliding jaw.

A is the handle, which is made in two parts, secured together in anysuitable manner. The inner sides of the llitlltll6-SGOblOllS are cutaway at their upper ends to form a fork, and are provided withperforations.

The head 13 is circular and formed with two side studs, a a, on eitherside, which studs fit within the perforations of the handle when itssections are securcdtogethcr, in order that the head may rotate. Thehead B is cut away to form a fixed jaw, b, and is recessed at c, asshown in Fig. 3, to receive the tongue of the movable jaw c and the o'icratingscrcw (l. The end of the screw opposite the head (7/ has abearing in the end wall of the slot, and

the screw is provided at its opposite end with a shoulder, d, whichbears against a shoulder, 0", at the outer end of the recess 0'. Thescrew (2, without its head, is first placed with- .in the slot 0; thcnthe tongueof movable jaw c, which is threaded on its under side, isinserted with its threads meshing with those of the screw, and a smallblock, it, is placed in the outer end. of the slot,with its under sidecut away to fit the cutaway part of the screw adjoining the shoulder (iThe head (7, is now secured to the screw cl,

which is firmly swiveled in the slot, as shown.

The slot 0 and screw (I extend beyond and across the center of the headwith which they are in line, which is easily accomplished, as there isno pivot in the way, owing to the studs a being formed on the sides ofthe head. By this construction a large adjustment is capable between thejaws, which are both within the circle described by the head, and theobject grasped between the jaws is brought very near to the side studs-aposition where the strain is best resisted, which could not be done werea pivot passed through the head, as the slot would have to be above thepivot or the pivot below and at some distance from the slot. The slotcould not in this case be central without pivoting The headeccentrically.

The outer edge of head B is toothed or scrrated for being engaged by theends of dogs or pawls c c, which serve to hold the head securely inplace as adjusted. These dogs are pivoted in slotted shank A on pins ff,at opposite sides of the shank, and are pressed into contact with thehead by a spring, 9. Their lower ends extend outside the shank orhandle, so that either or both may be quickly and readily disconnectedby the hand of the operator grasping the tool. This allows a quickadjustment of the head and re-engagemerit of the dogs.

In addition, for holding either dog out of contact, the cam h isprovided within the shank A on an arbor, r, and between the dogs, sothat when turned to one side or the other. by means of the projection7.: on the outer end or the arbor the pawl at that side is disengagedand held so. This construction and arrangement renders the tool veryconvenient for use in all situations and under every possiblecontingency. At the same time the wrench is compact and strong in everypart.

This tool is to be distinguished from rotary or pawl-and-ratchetwrenches.

l laving thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a wrench, the rotary circular head 13, formed with the side studs,a, and fixed jaw 21, and provided with the slot 0, extending across andbeyond the center, movable jaw 0, sliding vidod with a shoulder, (1?,bearing against therein, and the screw 4, swiveled within the slot inline with the centerof the head,for e ngaging the under side of saidmovable jaw, in combination with the handle A and mechanism,substantially as described, for holding the head in the desiredposition, as set,forth.

2. In a Wrench, the circular head B, formed with the side studs, a, andfixed jaw 12, and provided with the slot 0 and shoulder 0 screw (1,bearing in the end wall of the slot and pro shoulder 0 block d head d,and the sliding jaw 0, provided with a screw-threaded tongue meshingwith the threads of the screw, sub- 15 stantially as set forth.

hi JOSEPH LUssIEn. mark. Vitn esses J. H. HUGHES, O. P. SILLOWAY.

